
Phyllobates bicolor - closeup, Santa Cecilia, Colombia
Out of the ~130 species of poison dart frogs (family Dendrobatidae), only 4 are truly deserving of the "dart" part of the name. Meaning, their poisoneous secretion is documented to have been dipped in darts to aid in hunting. This species most certainly is an elite member, it's the 2nd most poisenous frog in the world. Endangered, rarely photographed in the wild.
Like most poison dart frogs, this species is variable. It ranges between orange and yellow, with yellow being more typical.

"Phyllobates bicolor", or more commonly referred to as the black-legged poison dart frog, is the world's second-most toxic dart frog.
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